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Human Polymerized Hemoglobin for the Treatment of Hemorrhagic Shock when Blood Is Unavailable: The USA Multicenter Trial

  • Ernest E. Moore
  • , Frederick A. Moore
  • , Timothy Fabian
  • , Andrew C. Bernard
  • , Gerard J. Fulda
  • , David B. Hoyt
  • , Therese M. Duane
  • , Leonard J. Weireter
  • , Gerardo A. Gomez
  • , Mark D. Cipolle
  • , George H. Rodman
  • , Mark A. Malangoni
  • , George A. Hides
  • , Laurel A. Omert
  • , Steven A. Gould
  • , Mary C. McCarthy

Research output: Contribution to journalArticlepeer-review

Abstract

<p> <h4 id="x-x-absSec_1"> Background </h4> <p id="x-x-simple-para0080"> Human polymerized hemoglobin (PolyHeme, Northfield Laboratories) is a universally compatible oxygen carrier developed to treat life-threatening anemia. This multicenter phase III trial was the first US study to assess survival of patients resuscitated with a hemoglobin-based oxygen carrier starting at the scene of injury. <h4 id="x-x-absSec_2"> Study Design </h4> <p id="x-x-simple-para0085"> Injured patients with a systolic blood pressure &le; 90 mmHg were randomized to receive field resuscitation with PolyHeme or crystalloid. Study patients continued to receive up to 6 U of PolyHeme during the first 12 hours postinjury before receiving blood. Control patients received blood on arrival in the trauma center. This trial was conducted as a dual superiority/noninferiority primary end point. <h4 id="x-x-absSec_3"> Results </h4> <p id="x-x-simple-para0090"> Seven hundred fourteen patients were enrolled at 29 urban Level I trauma centers (79% men; mean age 37.1 years). Injury mechanism was blunt trauma in 48%, and median transport time was 26 minutes. There was no significant difference between day 30 mortality in the as-randomized (13.4% PolyHeme versus 9.6% control) or per-protocol (11.1% PolyHeme versus 9.3% control) cohorts. Allogeneic blood use was lower in the PolyHeme group (68% versus 50% in the first 12 hours). The incidence of multiple organ failure was similar (7.4% PolyHeme versus 5.5% control). Adverse events (93% versus 88%; p = 0.04) and serious adverse events (40% versus 35%; p = 0.12), as anticipated, were frequent in the PolyHeme and control groups, respectively. Although myocardial infarction was reported by the investigators more frequently in the PolyHeme group (3% PolyHeme versus 1% control), a blinded committee of experts reviewed records of all enrolled patients and found no discernable difference between groups. <h4 id="x-x-absSec_4"> Conclusions </h4> <p id="x-x-simple-para0095"> Patients resuscitated with PolyHeme, without stored blood for up to 6 U in 12 hours postinjury, had outcomes comparable with those for the standard of care. Although there were more adverse events in the PolyHeme group, the benefit-to-risk ratio of PolyHeme is favorable when blood is needed but not available. </p> </p> </p> </p></p>
Original languageAmerican English
JournalJournal of the American College of Surgeons
Volume208
DOIs
StatePublished - Jan 1 2009

Disciplines

  • Medical Specialties
  • Medicine and Health Sciences
  • Surgery

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